The BSA Workshop > Twins

A10 rev counter timing cover

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big steve:
I have a A10 timing cover with what looks like a factory rev counter mounting adjacent to the mag drive,
I thought they picked up a drive from the oil pump can anyone enlighten me.

JulianS:
Driven from mag up to and including 1959 season. 1960 season on from oil pump.

STAR TWIN:
The timing cover rev counter drive catches your ankle. Given a few years, you almost get used to it. That may explain why it was changed to an oil pump drive.

big steve:
Thanks for that info I now know what it's off as it is a spare

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